title: Structures and Luminescent Properties of Two 2D Coordination Polymers Containing Tb(III) or Dy(III) Ions.
abstract: Two 2D rare earth terbium and dysprosium coordination polymers with 2,4-pyridinedicarboxylate and oxalate anions have been synthesized by hydrothermal method, the formula is {[RE(pda)(ox)0.5(H2O)4]·2H2O}n (RE = Tb (1) and Dy (2); H2pda = 2,4-pyridinedicarboxylic acid; ox = oxalate anion). The two complexes are isomorphic and crystallized in monoclinic system, P21/c space group. Each pda anion connects two rare earth ions with 2- carboxyl group and the nitrogen atom but the 4- carboxyl group does not coordinate with rare earth ions. Each ox anion connects two rare earth ions by μ 2-bridge way. Both the complexes exhibit intense characteristic luminescence of Tb(III) or Dy(III) ion with excitation of UV-rays.
authors.affiliation: College of Animal Science, Inner Mongolia Agricultural University, Huhhot, Inner Mongolia, 010018, People's Republic of China.
authors.forename: Xiaoping
authors.initials: X
authors.lastname: An
authors.affiliation: School of Chemistry and Chemical Engineering, Xuchang University, Xuchang, Henan, 461000, People's Republic of China. xcuwaller@163.com.
authors.forename: Hongsheng
authors.initials: H
authors.lastname: Wang
authors.affiliation: School of Chemistry and Chemical Engineering, Xuchang University, Xuchang, Henan, 461000, People's Republic of China.
authors.forename: Gongchun
authors.initials: G
authors.lastname: Li
mesh_terms: D004419:Dysprosium / Q000737:chemistry*; D013725:Terbium / Q000737:chemistry*; D014466:Ultraviolet Rays; D014961:X-Ray Diffraction
chemical_list: D013725:Terbium; D004419:Dysprosium
keywords: 2,4-pyridinedicarboxylic acid; Dysprosium; Oxalate; Photoluminescence; Terbium